A Safe Electrolyte Enriched with Flame-Retardant Solvents for High-Voltage LiCoO2||Graphite Pouch Cells
文献类型：期刊论文
| 作者 | Yang, Chao1; Zhou, Xing1; Sun, Ruitao1; Hu, Wenxi1; Wang, Meilong1; Dong, Xiaoli3,4; Piao, Nan5; Han, Jin2; Chen, Wen1; You, Ya1,2 |
| 刊名 | ACS ENERGY LETTERS
 |
| 出版日期 | 2024-10-18 |
| 卷号 | 9期号:11页码:5364-5372 |
| ISSN号 | 2380-8195 |
| DOI | 10.1021/acsenergylett.4c02466 |
| 通讯作者 | Han, Jin(jinhan@whut.edu.cn) ; You, Ya(youya@whut.edu.cn) |
| 英文摘要 | Employing a flame-retardant solvent (FRS) in the electrolyte has shown great potential for improving the safety of lithium-ion batteries (LIBs). Nevertheless, their poor compatibility with salts and commonly used solvents leads to the formation of a heterogeneous system, which drastically limits their concentration in the electrolyte and consequently deteriorates the safety performance. In this work, we employ a bridging solvent diethyl carbonate to raise the solubility of a highly effective FRS, ethoxy pentafluorocyclotriphosphonitrile (PFPN), to a concentration as high as 75 vol % in the electrolyte. The target electrolyte forms a stable N/P-rich cathode-electrolyte interface to protect the electrode from oxygen evolution and transition-metal ion dissolution, thereby enabling the LiCoO2 cathode to preserve 72% capacity retention over 500 cycles at 4.62 V. Moreover, this electrolyte can effectively delay occurrence time and improve the critical temperature of thermal runaway of 1 Ah LiCoO2||graphite pouch cells. Our work proposes a new direction for nonflammable electrolytes toward safe and high-energy LIBs. |
| 资助项目 | National Natural Science Foundation of China[2022YFB3803400] ; National Key Research and Development Program of China[52172234] ; National Key Research and Development Program of China[52302306] ; National Natural Science Foundation of China |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001340301700001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Han, Jin; You, Ya |
| 作者单位 | 1.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China 2.Wuhan Univ Technol, Int Sch Mat Sci & Engn, Sch Mat Sci & Microelect, Wuhan 430070, Peoples R China 3.Fudan Univ, Inst New Energy, iChEM Collaborat Innovat Ctr Chem Energy Mat, Dept Chem, Shanghai 200433, Peoples R China 4.Fudan Univ, Inst New Energy, Collaborat Innovat Ctr Chem Energy Mat, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Chao,Zhou, Xing,Sun, Ruitao,et al. A Safe Electrolyte Enriched with Flame-Retardant Solvents for High-Voltage LiCoO2||Graphite Pouch Cells[J]. ACS ENERGY LETTERS,2024,9(11):5364-5372. |
| APA | Yang, Chao.,Zhou, Xing.,Sun, Ruitao.,Hu, Wenxi.,Wang, Meilong.,...&You, Ya.(2024).A Safe Electrolyte Enriched with Flame-Retardant Solvents for High-Voltage LiCoO2||Graphite Pouch Cells.ACS ENERGY LETTERS,9(11),5364-5372. |
| MLA | Yang, Chao,et al."A Safe Electrolyte Enriched with Flame-Retardant Solvents for High-Voltage LiCoO2||Graphite Pouch Cells".ACS ENERGY LETTERS 9.11(2024):5364-5372. |
入库方式： OAI收割
来源：金属研究所
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